Question

what is nutrition and its types? ​

Answer 1

Answer:

AUTOTROPHIC NUTRITION - DEFINITION

Mode of nutrition is the way to obtain food. On the basis of obtaining and utilizing food, there are two types, autotrophic and heterotrophic.

Autotrophic nutrition: When an organism prepared their own food and does not depend on any other organism is called as autotrophic nutrition.

An organism that follows the autotrophic mode of nutrition is called as autotrophs e.g., plants.

Autotrophic mode of nutrition is further divided into two categories photoautotrophs (uses photosynthesis as a source of energy, e.g., plants and green bacteria) and chemoautotrophs (uses chemosynthesis, e.g., non- green sulphur bacteria).

PHOTOAUTOTROPH - DEFINITION

Photoautotrophic mode of nutrition is the process of formation of food by the process of photosynthesis.

In this process, the organism used sunlight as a source of energy along with carbon dioxide and water.

An organism that follows such mode of nutrition is called as photoautotroph e.g., algae, green plants.

HETERTROPHIC NUTRITION - DEFINITION

The mode of nutrition in which an organism depend on the plant or another animal for food is called as heterotrophic nutrition. An organism that carries out heterotrophic nutrition is called as heterotrophs e.g., animals.

Heterotrophic mode of nutrition is further divided into three groups such as:

Holozoic: It is the method in which animal taking in the complex food e.g., human being, cow, lion deer etc.

Saprophytic: It is the method in which organism first convert the complex food into the simpler and then use them as food e.g., bacteria, fungi etc.

Parasitic nutrition: It is the method in which an organism lives in the body of another organism and get nutrients from them e.g., Plasmodium, worms etc.

Explanation:

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Answer 2

Answer:

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Explanation:

Nutrition is the process by which an organism procures its nourishment, the supply of nutrients required by its body and cells to stay alive.

Nutrition is of two types namely

• autotrophic and heterotrophic mode of nutrition.

• Plants exhibit autotrophic mode of nutrition.

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